10-Day Weather Forecast - Katy, TX

Mostly sunny. Hot with highs in the mid 90s. South winds 5 to 10 mph.

Partly cloudy. Lows in the mid 70s. South winds 5 to 10 mph.

Mostly sunny. Highs in the mid 90s. Southwest winds around 5 mph becoming south around 5 mph in the afternoon.

Mostly cloudy. Lows in the mid 70s. South winds around 5 mph.

Mostly cloudy. A chance of showers in the morning then showers and thunderstorms likely in the afternoon. Highs around 90. Chance of rain 70 percent.

Mostly cloudy. Lows in the upper 70s.

Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40 percent.

Partly cloudy. Lows in the upper 70s.

Mostly sunny. Highs in the mid 90s.

Partly cloudy. Lows in the upper 70s.

Mostly sunny. Hot with highs in the mid 90s. Heat index values up to 105.

Mostly clear. Lows in the upper 70s.

Sunny hot with highs in the mid 90s.

Clear with widely scattered thunderstorms. Chance of storms 30%. Low temperature around 79F. Dew point will be around 75F with an average humidity of 78%. Winds will be 3 mph from the S.

Partly cloudy with widely scattered thunderstorms. Chance of storms 30%. High temperature around 96F. Dew point will be around 76F with an average humidity of 64%. Winds will be 3 mph from the S.

Clear with widely scattered thunderstorms. Chance of storms 30%. Low temperature around 78F. Dew point will be around 75F with an average humidity of 76%. Winds will be 2 mph from the S.

Sunny with widely scattered thunderstorms. Chance of storms 25%. High temperature around 97F. Dew point will be around 75F with an average humidity of 60%. Winds will be 2 mph from the S.

Clear with widely scattered thunderstorms. Chance of storms 25%. Low temperature around 78F. Dew point will be around 75F with an average humidity of 74%. Winds will be 2 mph from the S.